KR20010042453A - Safety device for a motor vehicle with a multi-chamber airbag - Google Patents

Abstract

The present invention provides a safety device for a vehicle with a multi-chamber airbag (2; 26; 42; 71; 91) inflatable by at least one gas generator (15; 27; 43; 72; 92) that is activated in the event of a vehicle crash. (1; 25; 41; 70; 90). In accordance with the present invention, the multi-chamber airbags 2; 26; 42; 71; 91 can be inflated quickly with less energy and have at least one touch airbag 3; 29; 46, 47, 48; 74, 75, 76; 93, wherein the touch airbag may be inflated into an inflation zone of at least one other airbag chamber (11, 12; 30, 31; 65, 66; 73; 94, 95) and a departure therefrom The obstacles 19 and 38 of the position are identified by touch. A touch recognition device 16; 34; 53, 54, 55; 79, 80 is connected to the touch airbag 3; 29; 46, 47, 48; 74, 75, 76; 93 and used at least during the inflation step Deliver control signals that can be At least one gas generator 15; 27; 43; 72; 92 includes a gas flow rate control device. The control device is connected to the touch recognition device 16; 34; 53, 54, 55; 79, 80 and prevents the additional inflation function of the gas generator 15; 27; 43; 72; 92 upon application of the control signal; Or at least reduce it.

Description

Automotive safety device with multi-chamber airbags {SAFETY DEVICE FOR A MOTOR VEHICLE WITH A MULTI-CHAMBER AIRBAG}

Automotive safety devices with multiple chamber airbags are generally known in different embodiments and different devices. In particular, airbag devices are known in the front, side and head impact portions of passengers. All these airbags are inflated through the associated gas generator, which is activated according to the collision delay and the direction of the collision in the event of a vehicle collision, thereby damping the impact on the passengers.

The problem with such a device is that the inflating airbag may undesirably attack a passenger or object in the inflation zone. In particular, this problem occurs in passengers outside of the normal position (OOP), such as children standing in front of the seat or adults leaning forward and objects on the seat, such as infant seats mounted thereon. .

Measurement devices are already known which detect this departure condition upon activation of the airbag and optionally prevent or reduce the inflation of the airbag. In particular, contactless working distance measuring devices with infrared and / or ultrasonic sensors and weight sensors are known. However, such a device is complicated and expensive.

The present invention relates to a safety device for an automobile having a multi-chamber airbag according to the preamble of claim 1.

1 is a cross-sectional view of a first embodiment of a multi-chamber airbag with a finger touch airbag and a touch recognition device with a measurement code;

2 is a cross-sectional view of a second embodiment of a multi-chamber airbag with switching contacts for touch recognition disposed in the region of the touch airbag.

3 is a cross-sectional view of a third embodiment of a multi-chamber airbag with multiple touch airbags.

4 is a cross-sectional view of a fourth embodiment of a multi-chamber airbag with three inflatable finger touch airbags.

5 is a cross-sectional view of a fifth embodiment of a multi-chamber airbag having a chest airbag chamber and a head airbag chamber.

It is an object of the present invention to provide a safety device for an automobile having a multi-chamber airbag, which is configured such that the aggressiveness is reduced by simple and direct detection of a deviation condition.

This object is achieved by the features of claim 1.

The multi-chamber airbag according to claim 1 comprises at least one finger touch airbag that is rapidly inflated with low energy and has a relatively small volume and touch function, the finger touch airbag comprising at least one other volume It may be inflated and / or introduced into the inflation zone of a large airbag chamber, where it identifies obstacles in the area, in particular passengers or objects in the disengaged position. A touch recognition device is connected to or integrated in the touch airbag that transmits a control signal that can be used at least during the airbag inflation step when the touch airbag strikes. Thus, the generation of such control signals means that there are unacceptable obstacles, i.e. passengers or objects in the disengaged position, in the inflation area where the airbag should be inflated without obstruction.

Here, the gas generator includes a device for controlling the amount of gas flowing into the multi-chamber airbag, which is connected to the touch recognition device. When the above-described control signal is applied to the control device, the additional expansion of the gas generator for the multi-chamber airbag is not achieved or at least reduced by the control signal.

Such touch airbags directly scan the inflation area of the airbag. Touch airbags that have a relatively small volume and are rapidly inflated with little energy do not actually have aggressiveness or only have a small aggressiveness. If no obstacle is identified in the touch area, an additional airbag contour is inflated just for the relevant passenger. In contrast, if a critical obstacle is identified in a given scanning area, the aggressiveness of the device is thereby restrained or at least strongly reduced, such that the additional airbag contour is inflated or at least reduced inflated.

Such one touch airbag or multiple touch airbags inflated in different directions can be used to identify the possibility of free inflation of the airbag in all airbag devices, in particular in the front, side and head airbags.

In a first embodiment a completely separate chamber of a multi-chamber airbag is formed as a touch airbag, and the touch airbag is inflated before inflation of at least one other airbag chamber in time. One or several such touch airbags are assigned one stage of each gas generator or multistage generator for a rapid inflation process with less energy, i.e. less aggressiveness.

In yet another embodiment at least one touch airbag is integrated into the large airbag chamber and formed by the placement of the band. To this end, a band is placed around the rear area of the touch airbag in the wall area, thereby restraining the expansion of the partial edge area of the airbag contour and first expanding the touch airmill with a small volume. The band is formed into a rupture band by limited force. That is, the bursting band ruptures upon additional pressure rise after the formation of the touch airbag so that the entire airbag contour is fully inflated. In such a device, a touch airbag can be formed by a small number of additional means and measures. In this case, a circular portion or a ring-shaped portion of the inflatable airbag, which is approximately in the form of a ball as a whole, is used for forming the touch airbag.

The formation of the touch airbag during the inflation phase with respect to structure and time lapse can preferably be matched to individual and vehicle specific conditions by the placement of the band, the length and burst characteristics and the provision of a throttle passageway in the flexible partition wall. .

Preferably, in all the embodiments described above, the gas introduction into the multi-chamber airbag is through at least one diffuser (at least outside the touch airbag region). The diffuser is connected after the gas generator and is emitted radially. The resulting radial expansion of the airbag reduces the aggression of the airbag to passengers. According to this measure, the aggression of the airbag apparatus is significantly reduced by adjusting the function of the touch airbag and optionally at least one generator, and / or by not allowing the multistage generator to ignite in an additional step.

In another embodiment for implementing a touch airbag, at least one, preferably a plurality of, finger-type touch airbags are formed on the bumping surface of at least one main chamber of the airbag toward the passenger in an approximately inflating direction. The structure of the device is optionally configured such that one or more touch airbags are inflated and introduced into the inflation zone of the entire contour at the start of the inflation phase with the aforementioned measures. In this embodiment, unlike in the above-described embodiment, the finger-like structure of the touch airbag does not become the ball-shaped overall structure after the tearing of the band, but is maintained as it is. In order to further reduce the aggressiveness of the free ends of the plurality of touch airbags, the inflating force is distributed in the plane by the free ends being connected by perforated thin films or nets.

In another embodiment for implementing a touch airbag, a first airbag chamber that expands relatively broadly downward in the direction of the passenger's normal position is used as the touch airbag. When the touch airbag is fully inflated without hitting an obstruction, the first airbag chamber and the chest airbag leading upwards in the front region are inflated for complete activation and formation of the entire airbag contour. Then, the adjacent head airbag chamber is inflated. Due to this multi-chamber system, the external contour structure and temporal order of the final state can be simply designed and matched to the individual and vehicle specific conditions by the above-mentioned measures in a simple manner here as well.

In all the above designs of touch airbags a touch recognition device is needed when hitting obstacles in the inflation zone.

In the first embodiment of the touch recognition device, the inflation speed and / or acceleration of the touch airbag is measured, and the measurement result is supplied to the threshold device. A sudden decrease in the measured value indicates that an obstacle has been encountered, so that the gas generator is adjusted and / or the cascade generator is not ignited in an additional step.

Basically many known speed measuring devices can be used. A very simple device for speed measurement consists of a measurement code with a bar code and an optical barrier with a signal evaluation device. The measurement cord is secured to the inner front end of the touch airbag and pulled through a cord brake that pulls the light cord and the measurement cord mounted thereon by inflation of the touch airbag. The bar code pulled through the light barrier is detected by the measurement technique and provides the passage speed. Also, if desired, the final position of the touch airbag is detected, and bumping of the touch airbag according to the final position does not cause adjustment of the gas generator.

As an alternative to or in addition to the speed detection device described above, a switching contact disposed in the front scanning area of the touch airbag can be used for touch recognition. The switching contact can be opened or closed depending on its starting position by deformation of the touch airbag when it hits an obstacle. Preferably the circuit is closed for the transmission of the control signal. In the device preferably the contacts are far apart such that contact delivery for the closure of the circuit upon full inflation of the airbag is no longer possible.

At least one multi-stage controllable multistage generator may be provided for adjusting one or multiple gas generators. The first stage is ignited to inflate the touch airbag. In the reaction of the touch identification device, the additional stage is not ignited by a suitable algorithm of the control device or in some cases only a reduced number of additional stages is ignited. The multi-stage generator may consist of an unadjustable generator and an adjustable generator as a second stage, or it may consist of an adjustable generator and an unadjustable generator as a second stage.

As an alternative or in addition thereto, in the event of the generation of the touch recognition signal, the gas inlet to the airbag is shielded by a slide screen, which is preferably operated by the ignition technology and at the same time the bypass is opened directly, thus directly to the already-ignited gas generator. Work is done.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 shows a safety device 1 for a vehicle with a multi-chamber airbag 2 that can be activated in a vehicle crash. The multi-chamber airbag 2 is formed such that the finger-type touch airbag is inflated quickly with little energy by the touch function when starting the airbag activation.

The touch airbag 3 is formed of bands 4, 5 mounted on the circular or ring-shaped part 6 of the touch airbag 3, on the one hand fixed to the vehicle and on the other hand facing the inflation direction. Thus, at the beginning of the inflation process, the wall parts 7, 8 are not inflated and the touch airbag 3 is formed.

As shown in FIG. 1, the touch airbag 3 is inflated by the axial gas flow 9 and the ring-shaped chambers (side airbag chamber part 11 and side airbag chamber part 12) of the multi-chamber airbag 2. ] Is expanded by the radial gas flow 10. The distribution of the gas streams 9, 10 in the axial direction and in the radial direction is effected by a diffuser connected after the first stage gas generator 15. Since the main gas flow is preferably directed in the radial direction, the touch airbag 3 expands less aggressively with less energy and rapidly expands due to its relatively small volume.

The touch recognition device 16 is connected to the touch airbag 3. The touch recognition device 16 includes a signal evaluation device having a measurement code 17 having a bar code, an optical barrier 18 fixed to the measurement code 17, and a threshold device not shown in FIG. 1. . The measuring cord 17 is fixed to the front inner end of the touch airbag 3 and pulled by the fixed light barrier 18 upon inflation of the touch airbag 3. The passing speed of the measuring code 17 is optically detected and measured by the light barrier 18 through the passing of the bar code. In order to ensure a relatively small cord tension in the region of the light barrier 18, a cord brake not shown in FIG. 1 is mounted.

When the touch airbag 3 strikes the passenger in the disengaged position as an obstacle during the collision of the vehicle, the inflating speed of the touch airbag 3 and the measurement code 17 is rapidly reduced. The decrease in the expansion rate of the measurement code 17 is detected by the signal evaluation device through the light barrier 18. The signal evaluation device transmits a control signal to the spark ignition member 21 when the predetermined speed and / or acceleration setting value is not reached. The control signal activates the slide screen to which the spark ignition member 21 is connected. The slide screen shields the gas inlet from the gas generator 15 to the multichamber airbag 2, thereby preventing further expansion of the multichamber airbag 2. Bypass is opened simultaneously with the forward movement of the slide screen, allowing the outflow of gas from the already-ignited gas generator. As a result, the passenger in the disengaged position is not damaged because the multi-chamber airbag 2 is no longer inflated in the final position indicated by the broken line in FIG. 1.

The bands 4, 5 have a set breaking point of limited force so that the multi-chamber airbag 2 can be inflated to its ball-shaped final position indicated by the broken line when there are no obstacles in the inflation zone. The set breaking point is ruptured by the inlet gas when the pressure additionally increases according to the design of the touch airbag 3, thereby expanding the entire airbag chamber. The bands 4, 5 are formed into flexible partition walls with passage openings, so that the throttle action between the gas entering directly into the touch airbag 3 and adjacent side airbag chamber portions 11, 12 for rapid formation prior to rupture. Has

2 shows a second embodiment of a vehicle safety device 25 with a multi-chamber airbag 26. The safety device 25 basically has the same configuration as the safety device 1 of FIG. 1. The multi-chamber airbag 26 activatable by the gas generator 27 is similar to the embodiment of FIG. 1 by the placement of the bands 32, 33, in the airbag chamber 30 and the airbag shown when the airbag activation starts. A ring air with a chamber portion 31 and a touch airbag 29 are formed.

In addition, the safety device 25 includes a touch recognition device 34. The touch recognition device 34 is composed of switching contacts 35, 36, 37. Among the switching contacts, the switching contact 37 is disposed at the front inner end of the touch airbag 29, and the two other switching contacts 35 and 36 are disposed to face each other at the end side side region of the touch airbag 29. . The switching contacts 35, 36 may be part of the contact ring. When the touch airbag 29 strikes a passenger, which is an obstacle 38 in the disengaged position, the relative position between the switching contacts 35, 36, 37 changes, and the switching contact 37 contacts the switching contacts 35 and 36. The contact closes the circuit. As a result, a control signal is transmitted to the control device, which controls the spark ignition member 28. The spark ignition member 28 activates the slide screen in accordance with the embodiment of FIG. 1. The slide screen shields the gas inlet into the multi-chamber airbag 26. At the same time, the bypass for gas outflow is opened. As the switching contact, a switching wire or a thin film of the switch which is ruptured for contact operation or in some cases closed when an obstacle is encountered may be used.

Here too, the bands 32, 33 are ruptured by the inlet gas at the additional pressure rise, thereby expanding the entire airbag chamber. In the final position of the multi-chamber airbag 26, shown in broken lines in FIG. 2, the switching contacts 35, 36, 37 are so far away that contact for closing of the circuit is impossible such that the generator 27 cannot be adjusted with the correct function. Falls.

3 shows a third embodiment of a safety device 41 for a multi-chamber airbag 42. The safety device 41 includes a multi-stage generator 43. The multi-stage generator 43 includes a first stage gas generator 44 and a second stage gas generator 45.

When the inflation process of the multi-chamber airbag 42 begins in a vehicle crash, the first stage gas generator 44 is ignited after the opening of the airbag cover, which is not shown here, resulting in the finger touch airbags 46, 47, 48. ) Expands with relatively low energy and relatively small volume. The touch airbags 46, 47, 48 are here also fingered by wall folding and bands 49, 50, 51, 52 arranged in the region of the multistage generator 43 corresponding to the embodiment of FIGS. 1 and 2. As it forms, the wall portions of the airbag do not initially inflate.

Since the touch airbags 46 and 48 are directed in one side direction, respectively, the passenger and the object in the disengaged position are also detected. The free ends of the touch airbags 46, 47, 48 can be connected by a thin film or net as shown. The illustrated touch airbags 46 and 48 may be part of a circular ring chamber.

One touch recognition device 53, 54, 55 is allocated to each of the touch airbags 46, 47, and 48. The touch recognition device 53 of the touch airbag 46 includes a measurement code 57 having a bar code, a fixed light barrier 58 assigned to the measurement code 57, and a signal evaluation having a threshold device not shown. Device. The measurement cord 57 is fixed to the front, inner end of the touch airbag 46 and pulls through the fixedly mounted light barrier 58 upon inflation of the touch airbag 46. Accordingly, the touch recognition device 54 of the touch airbag 47 having the measurement code 61 and the fixed light barrier 62 and the touch airbag 48 having the measurement code 63 and the fixed light barrier 64 are thus provided. The touch recognition device 55 is configured.

During the inflation of the touch airbags 46, 47, 48, the measurement cords 57, 61, 63 are tensioned relatively less by the cord brakes mounted in the region of the light barriers 58, 62, 64, so that the passage speed is It can be optically detected and measured through the bar code being pulled. For example, if the inflation speed of the measurement code 57, 61, 63 drops when one or multiple touch airbags 46, 47, 48 strike a passenger in the disengaged position, the predetermined speed and / or acceleration If not, the control signal is transmitted to the gas generator control device through the threshold device of the signal evaluation device. Then, since the gas generator control device no longer controls the second stage gas generator 45, no additional expansion of the multi-chamber airbag 42 is achieved.

Touch airbags 46, 47 and 48 have a high inflation rate with relatively little energy. Thus, for example, a passenger or infant seat with a relatively low load is detected even in the inclined position of the touch airbags 46, 47, 48, ie in the disengaged position.

If the passenger is not placed in the disengaged position, the rate of inflation of the measuring cords 57, 61, and 63 only drops until the break point of the bands 49, 50, 51 and 52 is reached. In this case, the control signal transmitted to the gas generator control device ignites the second gas generator 45. The gas generator further inflates the airbag chambers 65, 66 and the touch airbags 46, 47, 48, such that the bands 49, 50, 51, 52 rupture and the multichamber airbag 42 changes its final position. Can be taken.

The safety device 41 shown in FIG. 3 can basically be operated by a one-stage gas generator and a suitably formed diffuser, but this is not shown here. In this one-stage gas generator, the additional expansion of the multi-chamber airbag 42 is adjusted by the spark ignition member when the rate of inflation of the measurement codes 57, 61, 63 abruptly decreases corresponding to the embodiment of FIGS. 1 and 2. . For example, here the slide inlet closes the gas inlet into the multi-chamber airbag 42 and at the same time opens the bypass for the gas outlet.

4 shows another embodiment of a safety device 70 with a multi-chamber airbag 71. The safety device 70 includes a one-stage gas generator 72 capable of inflating the multi-chamber airbag 71. As shown in FIG. 4, at the start of the inflation process upon activation of the multi-chamber airbag 71, three finger-type touch airbags 74, 75, and 76 facing the inflation direction of the main chamber 73 are inclined. Is formed. The touch airbags are inflated together at the start of the inflation step due to the corresponding airbag structure.

The safety device 70 includes a measurement code 81 with a bar code, a first touch recognition device for a touch airbag 74 comprising a fixed light barrier assigned to the measurement code 81 and a signal evaluation device belonging thereto ( 79). The safety device 70 also includes a second touch recognition device 80 for the touch airbags 75 and 76. The second touch recognition apparatus 80 includes a first measurement code 83 for the touch airbag 75 and a second measurement code 84 for the touch airbag 76. The measurement codes 83 and 84 are assigned a fixed light barrier 85 with a signal evaluation device. Here too, the cord breaks for comparatively less cord tension are mounted in the area of the optical barrier, so that the bar codes of the measuring codes 81, 83, 84 can be detected and measured optically well when they are pulled through the optical barriers 82, 85. Can be.

The touch airbag 74, 75, 76 scans the front field of the main chamber 73 with relatively low energy, and suddenly of inflation speed when its measuring code 81, 83, 84 strikes the passenger in the disengaged position One signal is transmitted to the spark ignition member 86 through a signal evaluator assigned to the light barriers 82 and 85 by reduction. The spark ignition member 86 stops the supply of additional gas into the multi-chamber airbag 71 by a slide screen slidable in front of the gas inlet, thereby significantly reducing the aggression of the multi-chamber airbag 71 against the passenger in the disengaged position. do.

As shown by broken lines in FIG. 4, local finger attack is reduced because the free ends of the touch airbags 74, 75, 76 are connected by a net 87 or a perforated thin film.

5 shows another embodiment of a safety device 90 with a multi-chamber airbag 91 as a four-chamber airbag. In the safety device 90 comprising a single-stage or multi-stage gas generator 92, the first airbag gas chamber 96 and the second airbag chamber are activated as a touch airbag 93 for opening the flap in the event of a vehicle crash. . The touch airbag is inflated in the direction of the passenger's normal position in the lower region. If the passenger is in a disengaged position inside the vehicle, similar to the embodiment of FIGS. 1-4 described above, the gas supply and thus aggressive full inflation of the multi-chamber airbag 91 may result in adjustment of the gas generator 92 or spark ignition member. Can be interrupted by the activation adjustment of.

If the passenger is in the normal position inside the vehicle, i.e. not in the disengaged position and no additional obstacle is detected, the multi-chamber airbag 91 can be fully inflated. To this end, an additional chest airbag chamber 94 leading upwards in the front region of the touch airbag 93 is inflated through the touch airbag 93 and then thoracic through the touch airbag 93 and the chest airbag chamber 94. The head airbag chamber 95 that follows the airbag chamber 94 is inflated.

Claims (16)

1. A safety device for an automobile having a multi-chamber airbag that can be inflated by one or more gas generators that can be activated in the event of a vehicle crash. The multi-chamber airbags 2; 26; 42; 71; 91 have a touch function, can be inflated quickly with little energy, and have at least one finger type touch airbag 3; 29; 46, 47, 48; 74, 75, 76; 93, wherein the finger-type touch airbags have a supportive function and are inflated in one or more different airbag chambers 11, 12; 30, 31; 65, 66; 73; 94, 95 One or more of both inflation and introduction into are possible, identifying an obstacle 19; 38 in the inflation zone, in particular a passenger at a disengaged position, in the inflation zone, Touch recognition device 16; 34 which transmits a control signal that can be used at least during the airbag inflation step when the finger-type touch airbags 3; 29; 46, 47, 48; 74, 75, 76; 93 strike an obstacle. 53, 54, 55; 79, 80 are connected to the finger touch airbags 3; 29; 46, 47, 48; 74, 75, 76; 93; One or more gas generators 15; 27; 43; 72; 92 include a gas amount controlling device for controlling the amount of gas introduced into the multi-chamber airbag 2; 26; 42; 71; 91; The gas generator 15 for the multi-chamber airbag 2; 26; 42; 71; 91 connected to the touch recognition device 16; 34; 53, 54, 55; 79, 80 and upon application of a control signal; 27; 43; 72; 92. Automotive safety device with a multi-chamber airbag, characterized in that it blocks or at least reduces the additional inflation function. 2. The multichamber of claim 1 wherein at least one of said finger-type touch airbags 93 is a separate chamber of said multichamber airbag, said separate chamber being capable of inflating prior to inflation of at least one other airbag chamber. Automotive safety devices with air bags. The airbag of claim 1, wherein one or more of the finger-type touch airbags 3; 29; 46, 47, 48 are formed by the bands 4, 5; 32, 33; 49, 50, 51, 52. Formed in chambers 11, 12; 30, 31; 65, 66, and the bands 4, 5; 32, 33; 49, 50, 51, 52 are the finger-type touch airbags 3; 29 in the wall region. 46, 47, 48, wherein the finger-type touch airbags 3; 29; 46, 47, 48 are first inflated, since at least the partial wall area is restrained from inflation during the inflation process; The bands 4, 5; 32, 33; 49, 50, 51, 52 have one or more limited force breakpoints, and are added after formation of the finger-type touch airbags 3; 29; 46, 47, 48. Safety device for a vehicle with a multi-chamber airbag, characterized in that the entire airbag chamber is inflated by bursting when the pressure rises. 4. The band (4, 5; 32, 33; 49, 50, 51, 52) of the multi-chamber airbag (2; 26; 42) expandable in a substantially ball shape in its final position is inclined in the direction of inflation. By being mounted to one or more circular or ring-shaped portions 6 facing, the wall inside the circular or ring-shaped portions 6 can be inflated with one of the finger-type touch airbags 3; 29; 46, 47, 48, The wall portion adjacent the circular or ring-shaped portion 6 can be inflated into one airbag ring already during the formation of the finger-type touch airbags 3; 29; 46, 47 and 48. Automotive safety device. 5. The finger-type touch airbag (3) according to claim 3 or 4, wherein the bands (4, 5; 32, 33; 49, 50, 51, 52) are formed into soluble partition walls with passages, thereby rupturing the finger-type touch airbag (3) 29; 46, 47, 48, a multi-chamber airbag having a throttle action between the volume of airbag chamber portion 11, 12; 30, 31; 65, 66 adjacent to the gas flowing directly into Automotive safety device. The gas inlet into the multi-chamber airbag (2; 26) is radially through the diffuser at least outside the region of the finger-type touch airbag (3; 29). Automotive safety device with a multi-chamber airbag, characterized in that made. 2. The at least one finger touch airbag (74, 75, 76) of claim 1, wherein the one or more main touch chambers of the multi-chamber airbag (71) face in an inflated direction at the bumping surface of the one or more main chambers. Automotive safety device with a multi-chamber airbag, characterized in that it is inflated together in a corresponding structure at the beginning of the inflation phase. 8. The safety device for an automobile according to claim 7, characterized in that the free ends of the plurality of finger-type touch air bags (74, 75, 76) are connected by perforated thin films or nets (87). . The chest airbag chamber (94) of claim 1, wherein the airbag chamber (93) as a touch airbag expands relatively far downward in the direction of the passenger's normal position and extends upward in the front region of the touch airbag (93) for full activation. Is inflated through the touch airbag (93) and the head airbag chamber (95) is inflated following the chest airbag chamber (94). 10. The method according to any one of claims 1 to 9, wherein the finger-type touch airbags (3; 29; 46, 47, 48; 74, 75, 76; 93) recognize a touch when they hit an obstacle in a disengaged position. The touch recognition device 16; 34; 53, 54, 55; 79, 80 for the expansion of the finger-type touch airbags 3; 29; 46, 47, 48; 74, 75, 76; 93 Consisting of a measuring device of at least one of both speed and acceleration and a subsequently connected limiting device, said limiting device conveying a control signal for the gas generator control device when the set value of at least one of both of the predetermined speed and acceleration is not reached. Automotive safety device with a multi-chamber airbag. The speed measuring device according to claim 10, wherein the speed measuring device comprises a measuring code (17; 57, 61, 63; 81, 83) with a bar code and an associated light barrier (18; 58, 62, 64; 82, with a signal evaluating device). 85, and one end of each of the measurement codes 17; 57, 61, 63; 81, 83 is respectively finger-type touch airbags 3; 46, 47, 48; 74, 75, 76; 93 Fixed to the front inner end of the multi-chamber airbag (2; 42; 71; 91) and pulled in tension by inflation; The light barriers 18; 58, 62, 64; 82, 85 are fixedly mounted and through which the measurement codes 17, 57, 61, 63; 81, 83 are correspondingly pulled and tipped The speed of passage through the bar code can be optically detected and measured and is equipped with a cord brake to ensure a relatively small constant cord tension in the region of the light barriers 18; 58, 62, 64; 82, 85 Automotive safety device with a multi-chamber airbag. The touch recognition device (34) according to any one of the preceding claims, wherein the touch recognition device (34) consists of switching contacts (35, 36, 37) in the front region of the finger-type touch airbag (29). A contact is a vehicle having a multi-chamber airbag characterized in that when the finger-type touch airbag 29 strikes an obstacle 38, its relative position is changed and the circuit is opened or preferably closed as a control signal. Safety device. 13. The multi-chamber airbag according to claim 12, wherein the switching contacts (35, 36, 37) are separated from each other so that at the final position of the multichamber airbag (26), contact transmission for closing the circuit is impossible. Automotive safety device. 14. The gas generator (43) according to any one of the preceding claims, wherein the gas generator (43) is a multistage generator controllable by a control device, and the first stage (44) for inflation of the touch airbags (46, 47, 48). Car is equipped with a multi-chamber airbag, characterized in that ignition is activated and the ignition of the additional stage 45 is restrained by the control device through the transmission of a control signal in response to the touch recognition devices 53, 54, 55. Safety device. 15. The method according to any one of claims 1 to 14, wherein the control signal in response to the touch recognition device (16; 34; 79, 80), in particular when using a one-stage gas generator (15; 27; 72; 92) The multi-stage airbag is characterized in that the first stage gas generator (15; 27; 72; 92) is shielded by a gas flow control device introduced into the multi-chamber airbag (2; 26; 71, 91) via delivery. One car safety device. 16. The gas volume control device according to claim 15, wherein the gas amount control device includes a spark ignition member (21; 28; 86) and a slide screen connected thereto, which are activated by a control signal, wherein the multi-chamber airbag (2) is connected by the slide screen. 26; 71; 91 A safety device for an automobile with a multi-chamber airbag, characterized in that the gas inlet into the shield is blocked and at the same time the bypass is opened.